Finding the Third Proportional to 810,756 and 1,271,811

Step by Step Solution

1. Step 1: Write the proportion equation
   810,756 : 1,271,811 = 1,271,811 : x
2. Step 2: Convert to fraction form
   810,756/1,271,811 = 1,271,811/x
3. Step 3: Cross multiply
   810,756x = 1,271,811 × 1,271,811
4. Step 4: Simplify right side
   810,756x = 1,617,503,219,721
5. Step 5: Solve for x
   x = 1,617,503,219,721/810,756
6. Step 6: Final answer
   x = 1,995,055.50